baber/WOPTO huggingface dataset:
Patent GB-1140334-A (GB)
Title: Improvements in or relating to centrifugal impellers
IPC: F04D29/22
Filed: 1966-01-25
Abstract: 1,140,334. Centrifugal pumps and fans. S. A. ARMSTRONG Ltd. Jan. 25, 1966 [Jan. 28, 1965], No. 3259/66. Heading F1C. An impeller for a centrifugal pump for liquid or gas comprises a number of one-piece discs 10, Fig. 2, each having alternately protruding and recessed generally radial folds which constitute fluid channels on both faces of the disc, each of the fluid channels being defined by a pair of opposed side walls 14 and a transverse wall 15 or 16, each disc having a central opening intersecting the inner ends of the fluid channels to provide inlets for the fluid channels, the discs being secured together with the fluid channels of one face of each disc aligned with the fluid channels of the opposite face of an adjacent disc, and the discs being arranged in two groups (each group comprising a single disc as shown or more than one disc) on either side of a centre plate 27 so that the fluid channel inlets of each group communicate with each other but not with those of the other group, and end plates 20 secured to the outer faces of the end discs and each having a central inlet aperture 22 in communication with the fluid channel inlets of the adjacent group. The centre plate 27 has a hub 28 with a threaded bore 29 for attachment to a motor shaft. The centre plate may be of greater diameter than the discs and end plates, the pump housing being arranged so that fluid which has passed through the fluid channels on one side of the centre plate flows around the centre plate and then passes through the fluid channels on the other side of the centre plate.
Patent GB-544763-A (GB)
Title: Improvements in and relating to fluorescent coating and methods of manufacture of such coatings
IPC: C09K11/02
Filed: 1941-03-11
Abstract: 544,763. Luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. March 11, 1941, No. 3284. Convention date, March 14, 1940. [Class 39 (i)] A fluorescent coating on an electric discharge device is obtained by (i) mixing with the fluorescent material a small amount of boric acid, ¢ to 15 per cent of the phosphor ; (ii) making a suspension in a binder such as nitrocellulose dissolved in amyl acetate (iii) coating the envelope with this suspension and then firing at about 600-700‹ C. to fuse the boric acid. The particle size of the phosphor may be from 1-50 microns. The coating may be used in lamps as described in U.S.A. Specification 2,182,723 having an argon and mercury filling, the argon at 4 mm. and the mercury at a pressure of 12 microns. The phosphor may be zinc-beryllium silicate, zinc silicate, magnesium tungstate or a daylight mixture of zinc beryllium silicate, magnesium tungstate and cadmium borate. In another method of attaching the coating a binder consisting of boric acid in glycerine is laid thinly on the envelope which is fired at 600‹ C. ; on to this a conventional suspension is poured, dried and then fired at 475‹ C.
Patent GB-1363292-A (GB)
Title: Drying apparatus
IPC: F26B21/08
Filed: 1971-01-28
Abstract: 1363292 Drying apparatus; conditioning air SEALED MOTOR CONSTRUCTION CO Ltd 28 Jan 1972 [28 Jan 1971] 3391/71 Headings F4G and F4V The subject matter of this specification is similar to that described in Specification 1,363,291, but the claims are directed to an air conditioning unit, and are concerned with an auxiliary fan for passing more air over the evaporator of the vapour compression refrigerating plant in order to cool the air below its dew-point. The present specification discloses an auxiliary fan added to the embodiments shown in Figs. 1 and 2 of Specification 1,363,291, discloses a further embodiment in which heat is ejected from the apparatus by not thermally insulating the cabinet, and the auxiliary fan is only activated when the humidity in the chamber rises to a preset value, so as to pass more air over the evaporator. An electric heater and a desiccant are provided.
Patent GB-582768-A (GB)
Title: Improvements in switching in wave guide transmission systems
IPC: H01P1/12
Filed: 1944-02-24
Abstract: 582,768. Wave guides. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 24, 1944, No. 3487. Convention date, Feb. 25, 1943. [Classes 39 (i) and 40 (v)] A branched wave guide for feeding wave energy to two separate loads, e.g. aerials, is provided with switching means to introduce a substantially infinite impedance alternately into the respective branches. In Fig. 1 the wave source 1 is connected to branches 3, 4 leading to the respective loads or aerials. Each branch has a transverse slot into which enters a metal plate 5 of semicircular shape mounted on a shaft 6 so as to close the branches alternately. The transverse slots are each separated by an integral number of half wave-lengths from the junction of the branches. In another form, each branch guide is fitted with a resonant aperture device shown in Fig. 4, which normally allows the waves to pass, but blocks the waves when the air or gas in the aperture 29 between the transverse plates 21, 22 is ionized by the application of a high potential thereto. In Fig. 5, a resonant chamber 34 is formed in each guide 3 by constrictions 35, 36 and is tuned by a screw-adjusted probe 37. A gaseous discharge tube 39 is slidably supported between flanges opposite the probe 37, and the gas therein is ionized by closing a switch 40 applying a high potential between the electrodes. This changes the resonant characteristics of the chamber 34 and blocks the passage of the waves. Alternatively, the resonant chamber may be de-tuned by the periodic introduction therein of a cylindrical piece of metal or dielectric material. Reference has been directed by the Comptroller to Specification 608,839.
Patent GB-752574-A (GB)
Title: Amplifier circuit for cascade-coupled transistor amplifiers
IPC: H03F3/191
Filed: 1954-02-05
Abstract: 752,574. Transistor amplifying circuits. RADIO CORPORATION OF AMERICA. Feb. 5, 1954 [Feb. 13, 1953], No. 3495/54. Class 40 (6). In a cascaded amplifier employing a pair of transistors of opposite conductivity types, one stage is coupled to the next over means providing impedance transformation and direct current connection. In the selective amplifier shown in Fig. 1, tuned circuit 16 provides a high impedance load in the base-collector circuit of PNP transistor 10, a tap on the inductor 17 being coupled as a low impedance source to the emitter-base circuit of NPN transistor 20. In a similar manner, tuned circuit 26 provides a high impedance load in the base-collector circuit, the supply from battery 32 being tapped on inductor 27 to provide a low impedance output at terminals 31. The emitter 19 is connected over resistor 21 to battery, the flow of emittercollector current causing such a potential fall that the emitter is biased slightly negative with respect to the base so that the transistor 20 is in the conducting state. The emitter 13 of transistor 10 is biased slightly positive due to emitter-collector current flowing through resistor 35, the resulting potential opposing the battery 32. In a modification, Fig. 2, employing point contact transistors 40, 53, transformer input is employed with a bias resistor 35 shunted by a capacitor 49. The taps on the inductors 17, 27 provide the low-impedance points. The capacitor 22 effectively shorts resistor 21 at signal frequency.
Patent GB-657209-A (GB)
Title: Improvements in or relating to releasable fastenings
IPC: A44B19/08
Filed: 1949-02-09
Abstract: 657,209. Sliding clasp fasteners. JUB, A. Feb. 9, 1949, No. 3575. Convention date, July 31, 1948. [Class 44] A sliding clasp fastener shown in sections at right angles in Figs. 3 and 4 comprises a pair of flexible strips 3, 3<1> e.g. of leqther, rubber or the like, one being furnished with a series of headed studs 1 for engagement in a series of holes 2 in the other under the action of a sliding clasp 10 having converging guideways 11, 12 receiving the strips 3, 3<1> respectively. The guideways are laterally open on opposite sides to pass the bands 4, 4<1> connected to the strips and are arranged to lie parallel and adjacent each other at one end and by an S curve of one of them to lie parallel but spaced apart a distance greater than the length of the stud at the other. The walls 15, 16, of the guideway 12 are slotted at 20, 19 to pass the studs. The Specification as open to inspection under Sect. 91 describes an arrangement whereby the strips may be completely separated. The strip 3<1>, Fig. 6 (Cancelled) which retains the slider (not shown), carries a U-shaped bracket 25 to receive a clip 24 secured to the end of the other strip 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-124528-A (GB)
Title: Improvements in or relating to Telescopic Periscopes.
IPC: G01B11/00
Filed: 1916-03-13
Abstract: 124,528. Kelvin, Bottomley, & Baird, Watson & Sons, W., and Conrady, A. E. March 13, 1916. Periscopes.-In periscopes, more especially adapted for submarines, having eye-pieces comprising an eye lens, a field lens 8, and an interposed prism 4, wherein the eye lens 1 is exchangeable upon removal of a screw-threaded ring 7 in order to permit of substitution of a lens of greater focal length than the one adapted for daylight vision, thus providing for diminution of the magnification with a corresponding increase in diameter of the pencil while maintaining the final image within the range of distinct vision, hermetic sealing is nevertheless obtained by employing the vertical cathetus face of the lower prism 4 as a staunching surface and casting or forming on the internal surface of the ocular box 5 a rib 6 in the shape of a closed figure, against which the cathetus face is cemented or packed. In a modified optical system there is a concave lens immediately behind the cathetus face, and a removable convex eye lens as shown in Fig. 1.
Patent GB-1191952-A (GB)
Title: Improvements relating to Conduits Boxes
Inventor: FATEK FRANCISZEK
IPC: H02G3/08
Filed: 1967-01-25
Abstract: 1,191,952. Conduit boxes. F. FATEK & SON (PRESSINGS) Ltd. 5 April, 1968 [25 Jan., 1967], No. 3710/67. Heading H2E. [Also in Division H1] A sheet metal conduit box has a cable entry aperture 17 provided with a peripheral lip 19 which has been displaced from the aperture. The box has an earth connection in one corner which also earths the conduit. Tapped holes in lugs (11) receive screws on a cover-plate. Slots (13, 14) allow adjustment of the box position before mounting screws are tightened therein.
Patent GB-473049-A (GB)
Title: Improvements in or relating to hydraulic power transmitters
IPC: F16H45/00
Filed: 1937-02-08
Abstract: 473,049. Hydraulic transmission of power. VOITH, W., VOITH, H., and VOITH, H., (trading as VOITH, J. M., [Firm of]). Feb. 8, 1937, No. 3756. Convention date, Feb. 17, 1936. [Class 69 (ii)] A hydraulic power transmitter of the kinetic type having one or more working circuits F, G, has a fluid-tight reservoir C communicating through a control valve D with ducts D', D<2> for filling the circuits ; leakage liquid collecting in the sump is forced by the pump E into the reservoir, compressing the air in the upper part thereof, the valve D being shut; air entrained in the leakage liquid separates out in the reservoir C which has a large horizontal crosssectional area in its upper part. When the sump is empty, the pump E forces air alone into the reservoir, the maximum pressure being limited by a relief valve H. The valve D controls the supply of liquid, under the action of the compressed air, alternatively, to the ducts D, D<1> for filling the circuits.
Patent GB-449310-A (GB)
Title: Improvements in and relating to snap fasteners and to snap fastener installations
IPC: F16B5/12
Filed: 1936-02-07
Abstract: 449,310. Snap fasteners. UNITEDCARR FASTENER CORPORATION, 31, Ames Street, Cambridge, Massachusetts, U.S.A. -(Assignees of Pender, L. G. ; 16132, Ardmore Avenue, Detroit, Michigan, U.S.A.) Feb. 7, 1936, No. 3795. Convention date, Feb. 23, 1935. [Class 44] A double snap fastener for securing a hollow member 2 to a wall or ceiling 1, consists of a U-shaped metal body with expanded foot portions 9 as shown in Fig. 5. The yoke of the U forms the head 7 of the fastener and the resilient sides 8 are cut to provide resilient prongs 11 projecting outwards from the sides. The feet 9 are oppositely curved and are slightly longer than the sides to provide a shouldered neck 10. The head 7 is inserted in an opening, which may be rectangular or circular, in the support 1 until the prongs 11 snap into the holding position shown in Fig. 4. The hollow member 2 which is of channel form may then be snapped into position.
Patent GB-695985-A (GB)
Title: Improvements in pontoons
IPC: B63B35/53
Filed: 1951-02-16
Abstract: 695,985. Pontoons; floating docks for flying boats. SAUNDERS-ROE, Ltd., and BRIDGES, F. E. Jan. 30, 1952. [Feb. 16, 1951] No. 3825/51. Classes 4 and 113 (i). A unit for constructing pontoons consists of a metal box comprising side and end members 13 and 14 respectively which can be united together by bolting, a detachable top platform 31, at least one inflatable bag or other float 28 to fit inside the box and impart buoyancy thereto, a structure 30 shaped to the form of the bag which is attachable to the box and members 50 projecting from the side and end members of the box for attaching adjoining units together. In the embodiment shown in Fig. 9, the members 50 projecting from the bottom of the sides 13 have been omitted, those projecting from the top have been replaced by male and female outriggers 51, 52 forming hinges for adjoining members, and horizontal shear fittings 54, 55 are provided. Gusset plates 19 in the box have holes 45 for accommodating bollards 46, mooring attachments 47, stanchions 48, or lamp standards. As shown in Fig. 12, units may be joined and moored to form a dock for a flying boat. Other units may be joined to form a floating gangway between the shore and the dock.
Patent GB-123812-A (GB)
Title: Improvements in and relating to Electric Switching Devices.
IPC: H01H50/20
Filed: 1918-03-05
Abstract: 123,812. British Thomson - Houston Co., (General Electric Co). March 5, 1918. High-potential switches; sparking, preventing. -In high-potential switches, the contacts 6, 5 are separated by electro-magnetic or pneumatic means, or by both in conjunction, within a vessel 2 lined with low-expansion refractory material 7 and containing air under high pressure, the contacts being located, at the same time, in a strong magnetic field. The contact 5 is of magnetic material, and serves as the core or part of the core of the operating-coil 9 which surrounds an extension 4 of the vessel. The air pressure is supplied by the pipe 11, and the core 5 is fluted to admit the pressure to the interior of the vessel. By closing the switch 10, or by increasing the current in the coil 9, the core is withdrawn from the fixed contact 6, against the action of the spring 8, and the core supplies a blow-out field to attenuate the arc in the high-pressure atmosphere. The lining 7 may be fluted to permit the fullest attenuation of the arc. The contact-member may be operated pneumatically by providing air supply pipes on each side of a piston part carried by the core contact-member. By duplicating the construction shown in Fig. 1, combining the two fixed contacts into one, and connecting the two operating-coils in series, a double-break switch is obtained.
Patent GB-1448403-A (GB)
Title: Automatic etcher for offset master
IPC: B41N3/08
Filed: 1974-01-28
Abstract: 1448403 Automatic etching of offset masters PITNEY-BOWES Inc 28 Jan 1974 [29 Jan 1973] 03922/74 Heading B6C Apparatus which applies an etch solution to an offset master to render the image areas hydrophobic, comprises a master cylinder 10, Fig. 4, a feed roller 28 dipping in a reservoir (12), Fig. 1 (not shown) of solution, and squeegee means, e.g. a collar 88, the feed roller 28 being movable between three positions in sequence under automatic control. In preferred embodiments, the feed roller 28 is covered with a foam sleeve (31) Fig. 7 (not shown); a wiper blade (110), Fig. 3 (not shown) is movable into contact with the master cylinder after application of solution; the feed roller 28 is moved, through lever 16 and camming plate 22, by link 44 driven by eccentric pin 66, from a rest position firstly into contact with squeegee roller 88, Fig. 5 (not shown), and then into contact with both squeegee roller 88 and master cylinder 10. The directions of movement of roller 28 and cylinder 10 being opposite at their point of contact. The operation is controlled through a master sequencer (not shown) and switches (76, 78, 80) Fig. 1 (not shown) acting on control shaft 64 and eccentric pin 66.
Patent GB-1145951-A (GB)
Title: Isocyanates
Inventor: HUIDOBRO FERNANDO
IPC: C08G18/69
Filed: 1967-01-26
Abstract: 1,145,951. Laminated rubber. FARBENFABBIKEN BAYER A.G. 26 Jan., 1967 [5 Feb., 1966 (2)], No. 3923/67. Heading B5N. [Also in Divisions C2 and C3] In examples, laminates are prepared by bonding together 2 pieces of transparent rubber shoe sole material each coated with an adhesive prepared by mixing a solution of triphenylamine- 4,4<SP>1</SP>,4<SP>11</SP>-triisocyanate in methylene chloride with (a) pale crepe rubber in trichloroethylene/ benzene, or (b) a polyurethane in ethyl acetate/ acetone. More generally, the isocyanate may have the formula wherein R is halogen or alkyl, x and y are each 0, 1 or 2, and the sum of the x's is 2 or 3.
Patent GB-856122-A (GB)
Title: A constructional toy
IPC: A63H27/00
Filed: 1959-02-04
Abstract: 856,122. Constructional toys. REISER, R. Feb. 4, 1959, No. 3938/59. Class 132(3). [Also in Group XXXIII] A constructional toy comprises a set of prefabricated parts including a main component in the form of a substantially cylindrical body, and a plurality of sets of members adapted to construct selectively a rocket, an aeroplane and a kite frame, and means for connection of the selected members to said main component. The main component 1 has a longitudinal bore 2 and a transverse bore 3. Wings 12, 13 carry spigots, 11 to engage the transverse bore and the wings are positioned by inserting the root portions in slots 14, 15 in part 1. The tail end of part 1 is similarly slotted to accommodate tailplanes 8 and a fin 9. In the rocket version the wings are dispensed with and the tail unit 8, 9 is replaced by a cruciform set of stabilising fins, a nose cone 4 being plugged into bore 2. A kite frame is constructed by using body 1 alone and inserting nose and tail sticks into bore 2 and cross sticks into bore 3. The parts may be stored in a prepared box.
Patent GB-1105295-A (GB)
Title: Building structures and prefabricated components for incorporation therein
Inventor: WILLIAMS ROBERT LIONEL
IPC: E04C3/08
Filed: 1964-04-28
Abstract: 1,105,295. Metal trusses; building panels. REINFORCED CONCRETE CONSTRUCTION CO. Ltd., R. L. WILLIAMS and R. LAMPARD [trading as WILLIAMS & LAMPARD]. 28, July, 1965 [28, April, 1964], No. 3941/64. Headings E1B and E1K. Metal roof trusses 10 for use in prefabricated buildings, e.g. garages, having flat roofs, each have at least one vertical end support member 17 of angle-section, with a vertical set of holes 20 therein, by which they can be bolted to adjacent prefabricated wall panels at any one of a number of different vertical positions. The angle-section top boom 12 extends over the member 17 and has an anglesection end fixing member 21 secured thereto. The angle-section bottom boom 14 is connected to the top boom 12 either by a single continuous rod 16 welded to the horizontal flanges of the boom, (as shown) or by individual straight lengths of rods, arranged in the same way as shown, or by a perforated metal sheet. Trusses may be connected end-to-end by angle-section connectors 35, (Fig. 8, not shown). The wall panels may be of prefabricated reinforced concrete construction, each with a tapered peripheral flange 26, (Fig. 5, not shown) with holes therein for connecting the panels together and to the roof trusses.
Patent GB-1093194-A (GB)
Title: Improvements in or modifications of means for discharging and/or unloading containers
Inventor: MURFITT RALPH
IPC: B65D90/00
Filed: 1964-01-30
Abstract: 1,093,194. Material discharging into vehicles. MURFITT BULK TRANSPORTERS Ltd. Jan. 29, 1965 [Jan. 30, 1964], No. 3980/64. Addition to 1,059,328. Heading B8E. The mechanism for traversing the bulkhead of the parent specification is replaced by two winch drums which with their driving mechanism are mounted on the bulkhead with the axis of rotation of the drums being transverse to the direction of movement of the bulkhead and are provided with cables extending to, and secured to the ends of the container. The drums are each provided with two pairs of cables differently wound thereon one of each pair extending to the four corners of the container respectively. The cables are adjustably secured to the ends so that their tensions can be adjusted. The upper guide rollers of the bulkhead engage the container near the top corners rather than the sides thereof.
Patent GB-579328-A (GB)
Title: Improvements in and relating to processes for treating organic fibrous materials, such as fibres, fabrics and wood, in order to impart to such materials fire resistance
IPC: D06M11/47
Filed: 1943-03-11
Abstract: 579,328. Fireproofing permeable materials. JORDAN, L. A., and O'NEILL, L. A. March 11, 1943, No. 3992. [Class 140] Organic fibrous material such as fibres, fabrics, or wood, are rendered fire-resistant by impregnation wholly or in part first with a solution of a potassium antimonate and then with a salt of a strong acid and a weak base thereby precipitating antimony oxide in the fibres. The antimonate may be any appreciably watersoluble potassium salt of an antimonic acid, e.g., that known as potassium pyro-antimonate (KH2SbO4); and the precipitating salt may be ammonium sulphate. The first step may consist of one or more impregnations with the antimonate. The said weak base may be waterinsoluble, e.g., iron hydroxide, so that there is also precipitated in the fibres the insoluble oxide of the weak base, any excess of the precipitating salt, e.g., ferrous sulphate, being subsequently precipitated by means of an alkali, e.g., sodium carbonate or ammonia; in this case the first impregnating step need not be repeated, but in view of the presence of iron oxide, the material may be after-treated with an anti-smouldering agent, e.g., one of the known chlorinated organic compounds, such as chlorinated paraffin wax, or chlorinated rubber. It is stated that about 1-2 per cent. of antimony oxide calculated as Sb2O3 and 3-5 per cent. of iron oxide calculated as Fe2O3, both measured with reference to the finished impregnated article are necessary to yield a satisfactory result or, if iron oxide is not present, 3-5 per cent. of antimony oxide. The fireproofing is substantially resistant to removal by washing with water.
Patent GB-596364-A (GB)
Title: Improvements in or relating to flexible abrasive sheet materials
IPC: B24D11/00
Filed: 1944-03-03
Abstract: 596,364. Flexible abrasive sheet materials. STEVENS, A. H. (Armour & Co.). March 3, 1944, No. 4014. [Class 60] Flexible abrasive material comprises a pile fabric 10 having an irregular covering of hardened abrasive coating completely covering the base fabric 10 and clusters of the pile filaments 11 rising therefrom. The pile fabric may be a velour, velvet, chenille, carpet or other form of tufted or napped fabric made from vegetable, animal or synthetic fibres. An adhesive coating 12 may be applied first, followed by abrasive particles 13, or a mixture of an adhesive and abrasive particles may be applied, The abrasive may be aluminium oxide, garnet or silicon carbide. After drying, the coating may be broken or cracked into segments by running the fabric over a breaker bar.